Purified recombinant Human ALDH2 protein Expression System: E.coli Bioactivity: Specific activity is < 0.2 units/mL, and was obtained by measuring the increase of NADP in absorbance at 340 nm resulting from the reduction of NAD. One unit will oxidize 1.0 uM of acetaldehyde to acetic acid per minute at pH 8.0 at 25 °C in the presence of beta-NAD, potassium and thiols. Molecular weight on SDS-PAGE will appear higher.
纯度
> 90 % pure
内毒素水平
< 1.0 EU per µg of protein (determined by LAL method)
ALDH2 protein has been used in SDS PAGE and may be suitable for use in other assays to be determined by the end user.
实验流程
Prepare a 3 mL reaction mixture into a suitable container: The final concentrations are 103 mM Tris, 0.67 mM beta-NAD, 100 mM potassium chloride, 10 mM 2-mercaptoethanol, 2 mM acetaldehyde, 0.0007 % (w/v) BSA. 2. Equilibrate to 25 °C and monitor at A340 nm until value is constant using a spectrophotometer. 3. Add 5 µg of recombinant ALDH2 into reaction mixture and mix immediately. 4. Record the increase at A340 nm for 5 minutes
限制
仅限研究用
状态
Liquid
浓度
1 mg/mL
缓冲液
Supplied as a liquid in 20 mM Tris-HCl buffer, pH 7.5, containing 0 mM DTT, 0 mM EDTA, and 10 % glycerol.
储存液
Dithiothreitol (DTT)
注意事项
This product contains Dithiothreitol: a POISONOUS AND HAZARDOUS SUBSTANCE, which should be handled by trained staff only.
注意事项
Avoid repeated freeze/thaw cycles.
储存条件
RT/-20 °C
储存方法
Store at 4 °C for short term storage (1/2 weeks). Aliquot and store at -20 °C or - 70 °C for long term storage.
抗原
ALDH2
(Aldehyde Dehydrogenase 2 Family (Mitochondrial) (ALDH2))
ALDH2 (Aldehyde dehydrogenase 2 family) belongs to the aldehyde dehydrogenase family which catalyze the chemical transformation from acetaldehyde to acetic acid and is the second enzyme of the major oxidative pathway of alcohol metabolism. There are two major liver isoforms of this enzyme, cytosolic and mitochondrial, and they can be also distinguished by their electrophoretic mobilities, kinetic properties, and subcellular localizations. Recombinant human ALDH2 protein was expressed in E. coli and purified by using conventional chromatography techniques. Alternative Names: Aldehyde dehydrogenase mitochondrial protein, ALDH E2 protein, mitochondrial Acetaldehyde dehydrogenase 2 protein, ALDH-2, Aldehyde dehydrogenase protein, ALDH 2 protein, ALDH 2 protein, ALDH-2 protein, ALDM protein, MGC1806 protein, ALDH 2, Aldehyde dehydrogenase 2 family protein, Mitochondrial aldehyde dehydrogenase 2 protein, ALDH class 2 protein, ALDH2, ALDHI protein, Nucleus encoded mitochondrial aldehyde dehydrogenase 2., Aldehyde dehydrogenase 2 family (mitochondrial) protein, ALDH-E2 protein, Liver mitochondrial ALDH protein